Slime would be hostile when hungry, but not much hostile when any other emotion. How he eats is basically he engulfs the creature / item with no waste left over from it. after a week or two, the item or creature is fully digested, except for humans. They don't digest humans. He is mute and cant talk, but he still has feelings! He is a wiggly, jiggly, adorable blob of slime! and if you pet him, he purrs!